Finding the Fourth Proportional to 494,358.24, 681,554.64 and 392,721.08
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Solution
The fourth proportional to 494,358.24, 681,554.64 and 392,721.08 is: 541,431.00
Step by Step Solution
- Step 1: Write the proportion equation
494,358.24 : 681,554.64 = 392,721.08 : x - Step 2: Convert to fraction form
494,358.24/681,554.64 = 392,721.08/x - Step 3: Cross multiply
494,358.24x = 681,554.64 × 392,721.08 - Step 4: Simplify right side
494,358.24x = 267,660,874,299.81 - Step 5: Solve for x
x = 267,660,874,299.81/494,358.24 - Step 6: Final answer
x = 541,431.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.